Seat



April 17, 1928.

A. F. MASURY SEAT Filed Sept. 27. 1926 ventoz @lbtovm Patented Apr. 17., 1928.

UNITED STATES PATENT OFFICE.

ALFRED F. MASURY, OF NEW YORK, N. Y., ASSIGNOR TO INTERNATIONAL MOTOR COMPANY, OF YORK, N. Y.,

A CORPORATION OF DELAWARE.

SEAT.

Application filed September 27, 1926. Serial No. 137,919.

The present invention relates to an improved form of seats and has to do, especially, with the swivel type for use in vehicles, busses, trains, etc., Where it is desired to po- 6 sition the seats in any of several positions and prevent them from being turned while in such position.

The device described herein relates generall to the class of seats described in the appllcation of William E. Hasselkus, No.

113,649, filed June 4, 1926, and forms a modilied construction of such device.

An object of the present invention is to provide an improved swivel seat which is 16 easy to operate and which may be secured in a position desired under certain conditions of travel, such, for example, as when the direction of movement. of a car has been reversed and it is desired to reverse the seats to enable the passengers to face in the proper direction. p

Other objects will appear as'the description proceeds and reference will now behad to the accompanying drawings forming part hereof.

In the drawings:

Figure 1 is an elevation, partly in section, of a preferred form of the invention;

Figure 2 is a plan view, partly in section, and taken on the line 2-2 of Figure 1.

In the drawings, a represents a base or pedestal provided with a downwardly extending vertical housing a within which is a bearing member o The bearing member has a notch (1 provided therein which serves to receive a detent, to be described later. The housing a has formed integral therewith an inverted seat a in which rests a spring (1 The seat format which has a downwardly extending shaft b? which is carried by the bearing member a flange 6 formed integral with the shaft provides a bearing to receive the thrust of the seat and on opposite sides of the flange are notches b. I

-A crank arm 0 is pivoted to the base at c and has an arm a to engage the lower end of the shaft 6 and an arm a which carries a detent c which may be in the form of a roller mounted on the arm 0 The spring a keeps the detent normally in engagement frame 6 is provided with a plat-'- with the notches a and b to prevent the seat from being turned. To the outer end of the crank c'is secured a rod d having a cam (l and connected to the crank through a lost motion connection (1 The" platform carries two arms or shoes I) pivoted to the platform at, b and a connecting rod b operates these shoes simultaneousl v. A lever b secured to the seat at Z) enables the shoes to be moved.

It will be seen that upon movement of the lever b one of the shoes (depending upon which direction the seat is facing) will push down upon the cam d and cause the seat to be lifted by the resulting upward movement of the arm 0 As the seat is lifted the detent 0 swings outwardly from the recesses and releases the seat 'to permit it to be turned in either direction. When the recess has been turned beyond the detent the handle may be released and the roller of the detent carries the weight through the arms 0 0 After the seat has been turned through the required angle, the detent falls into the corresponding recess and the seat is locked. The shoes 6 ride off the cam d after a certain initial movement and ride up and on at the end of themo'vement so that the handle will be effective, again, to operate the detent.

The invention'may be embodied in different forms and is not to be restricted except as defined by the appended claims What I claim is:

1. In a seat wherein the seat frame is mounted to rotate in a base, latch means carried by the base to engage the seat frame to prevent its rotation and. means upon the seat frame to engage the latch in predetermined angular posit-ions of the seat frame to release the latch.

2. In a seat wherein the seat frame is mounted to rotate in a base, latch means upon the base to prevent the seat from being rotated a cam connected to the latch, and means upon the seat frame to engage the cam in predetermined angular positions of the frame to release the latch.

3. In a seat wherein the seat frame is mounted to rotate in a base, latch means upon the base to prevent the seat from being rotated, a cam connected thereto, shoes "uponm weasel the seat, and means upon the seat, to move ally mounted upon the seat and disposed at the shoes into operative engagement with the opposite sides thereof, and means to move the cam to operate the latch. shoes into engagement with the cam to re- 3% 4. In a seat wherein the seat frame is lease the latch; 5 mounted to rotate in a base, latch means upon This specification signed this 23rd day of the base to prevent the seat from being ro- September A. D. 1926. tated, a cam connected thereto, shoes pivot? ALFRED F. MASURY. 

